package com.tgy;

/**
 * 1. StringBuffer
 *  线程安全， 方式使用 Synchronize修饰
 * 2. StringBuilder
 *    线程不安全
 *
 */
public class _05_StringBuffer_StringBuilder {

  public static void main(String[] args) {

    StringBuffer stringBuffer = new StringBuffer();

    StringBuilder stringBuilder = new StringBuilder();
  }
}
